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Cookie Class

Provides a set of properties and methods that are used to manage cookies. This class cannot be inherited.

Namespace:  System.Net
Assembly:  System (in System.dll)

[SerializableAttribute]
public ref class Cookie sealed

The Cookie class is used by a client application to retrieve information about cookies that are received with HTTP responses. The following cookie formats are supported during parsing of the HTTP response headers: the original Netscape specification, RFC 2109, and RFC 2965.

For a list of initial property values for an instance of Cookie, see the various Cookie constructors.

The following example sends a request to a URL and displays the cookies returned in the response.

#using <System.dll>

using namespace System;
using namespace System::Net;

// This example is run at the command line. 
// Specify one argument: the name of the host to  
// send the request to. 
// If the request is sucessful, the example displays the contents of the cookies 
// returned by the host. 
int main()
{
   array<String^>^args = Environment::GetCommandLineArgs();
   if ( args == nullptr || args->Length != 2 )
   {
      Console::WriteLine( "Specify the URL to receive the request." );
      Environment::Exit( 1 );
   }


   HttpWebRequest^ request = dynamic_cast<HttpWebRequest^>(WebRequest::Create( args[ 1 ] ));
   request->CookieContainer = gcnew CookieContainer;
   HttpWebResponse^ response = dynamic_cast<HttpWebResponse^>(request->GetResponse());
   response->Cookies = request->CookieContainer->GetCookies( request->RequestUri );

   // Print the properties of each cookie.
   System::Collections::IEnumerator^ myEnum = response->Cookies->GetEnumerator();
   while ( myEnum->MoveNext() )
   {
      Cookie^ cook = safe_cast<Cookie^>(myEnum->Current);
      Console::WriteLine( "Cookie:" );
      Console::WriteLine( "{0} = {1}", cook->Name, cook->Value );
      Console::WriteLine( "Domain: {0}", cook->Domain );
      Console::WriteLine( "Path: {0}", cook->Path );
      Console::WriteLine( "Port: {0}", cook->Port );
      Console::WriteLine( "Secure: {0}", cook->Secure );
      Console::WriteLine( "When issued: {0}", cook->TimeStamp );
      Console::WriteLine( "Expires: {0} (expired? {1})", cook->Expires, cook->Expired );
      Console::WriteLine( "Don't save: {0}", cook->Discard );
      Console::WriteLine( "Comment: {0}", cook->Comment );
      Console::WriteLine( "Uri for comments: {0}", cook->CommentUri );
      Console::WriteLine( "Version: RFC {0}", cook->Version == 1 ? (String^)"2109" : "2965" );

      // Show the string representation of the cookie.
      Console::WriteLine( "String: {0}", cook );

   }

}

// Output from this example will be vary depending on the host name specified, 
// but will be similar to the following. 
/*
Cookie:
CustomerID = 13xyz
Domain: .contoso.com
Path: /
Port:
Secure: False
When issued: 1/14/2003 3:20:57 PM
Expires: 1/17/2013 11:14:07 AM (expired? False)
Don't save: False
Comment: 
Uri for comments:
Version: RFC 2965
String: CustomerID = 13xyz
*/
#using <mscorlib.dll>
#using <System.dll>
using namespace System;
using namespace System::Net;

// This example is run at the command line.
// Specify one argument: the name of the host to 
// send the request to.
// If the request is sucessful, the example displays the contents of the cookies
// returned by the host.

int main()
{
    String* args[] = Environment::GetCommandLineArgs();

    if (args == 0 || args->Length != 2)
    {
        Console::WriteLine(S"Specify the URL to receive the request.");
        Environment::Exit(1);
    }
    HttpWebRequest* request = dynamic_cast<HttpWebRequest*>(WebRequest::Create(args[1]));
    request->CookieContainer = new CookieContainer();

    HttpWebResponse* response = dynamic_cast<HttpWebResponse*> (request->GetResponse());
    response->Cookies = request->CookieContainer->GetCookies(request->RequestUri);


    // Print the properties of each cookie.
    System::Collections::IEnumerator* myEnum = response->Cookies->GetEnumerator();
    while (myEnum->MoveNext())
    {
        Cookie* cook = __try_cast<Cookie*>(myEnum->Current);
        Console::WriteLine(S"Cookie:");
        Console::WriteLine(S"{0} = {1}", cook->Name, cook->Value);
        Console::WriteLine(S"Domain: {0}", cook->Domain);
        Console::WriteLine(S"Path: {0}", cook->Path);
        Console::WriteLine(S"Port: {0}", cook->Port);
        Console::WriteLine(S"Secure: {0}", __box(cook->Secure));

        Console::WriteLine(S"When issued: {0}", __box(cook->TimeStamp));
        Console::WriteLine(S"Expires: {0} (expired? {1})", __box(cook->Expires), __box(cook->Expired));
        Console::WriteLine(S"Don't save: {0}", __box(cook->Discard));    
        Console::WriteLine(S"Comment: {0}", cook->Comment);
        Console::WriteLine(S"Uri for comments: {0}", cook->CommentUri);
        Console::WriteLine(S"Version: RFC {0}" , cook->Version == 1 ? S"2109" : S"2965");

        // Show the string representation of the cookie.
        Console::WriteLine (S"String: {0}", cook);
    }
}

// Output from this example will be vary depending on the host name specified,
// but will be similar to the following.
/*
Cookie:
CustomerID = 13xyz
Domain: .contoso.com
Path: /
Port:
Secure: False
When issued: 1/14/2003 3:20:57 PM
Expires: 1/17/2013 11:14:07 AM (expired? False)
Don't save: False
Comment: 
Uri for comments:
Version: RFC 2965
String: CustomerID = 13xyz
*/

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

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